Aeroplane.



L. YOUNG.

AEROPLANE. 7' APPLICATION man OCT. 2. 1911.

Patentefl' MW 21, 1918.

in elevation and partly LEWLS Gr. YOUNG, OF NEW Y'DRK, N. Y.

AEROPLANEQ Application filed October 2,

To all whom it may concern:

Be itknown that l, LEWIS G. YOUNG, a' citizen of the United States, anda resident of the borough of Manhattan of the city of New York, in theState of New York, have invented certain new and useful Improve-- mentsin Aeroplanes, of which the following is a specification, referencebeing had to the accompanying drawing, formlng a part hereof;

This invention relates particularly to the wing structure of aeroplanesand it has for its object to provide fittings which shall hold securelyinplace the wing struts, and afiord suitable anchorage for the driftwires while dispensing-with turnbuckles and leaving the adjusting nutsreadily accessible, and shall reduce weight to a minimum. The invention'will be more fully explained hereinafter with reference to theaccompanying drawing in which it is illustrated and in WlliCll- Figure 1is a. fragmentary View showing in section a portion of a wing-spar,portions of an internal, tubular strut and adjacent drift wires, and animproved fitting. v

Fig. 2 is a top view of the same with'one of the drift wires removed.

Fig. 3 is a detail view showing the fitting in section. on the planeindicated by the broken line 33 of Fig; i.

A. wing-spar, usually of wood, of one of the planes of an aeroplane, isshown. at a in the draw ng, with a portion Z) of a strut. lit willgbeunderstood that as usual several such struts are interposed, ascompression members, between the spars of a wing. Drift wires or guywires or tension members 0 also extend as diagonals from one spar toanother. The strut usually bears at each end against a bearing plate atwhich is interposed between the end of the strut and the spar. It, isnecessary to provide means to preveht the end of the strut from slippingto one side or another on the spar and it is also necessary to providemeans, adjacent the end of the strut, f fi' the anchorage of the driftwires or tension members 0. For this purpose there is provided, inaccordance with the present invention, a strut fitting 6, which isarched longitudinally, as

clearly shown in Fig. 1, is made concavoconvex in cross 'SGCillOIi, asclearly shown m Fig. 3, and has at its ends flat feet to restSpecification 01 Letters Patent.

Patented May 2f, llmld. 1917. Serial No. 1%,307.

against the spar and to receive the bolts f by which it is secured tothe spar. lit is pro vided centrally with an aperture 9 to receive, witha reasonably snug fit, the end of the strut b, and it is also slotted,as at h, to receive the endsof the eye-bolts la, to which the driftwires 0 are secured. The eye-bolts are passed through the slots 7:. andreceive on the inner side of the fitting e the nuts m, which are readilyaccessible through the open sides of the arch for the purpose of placingthe drift wires under tension, without the use of turnbuckles.

Each fitting, a. will be observed, is not only very light, out by reasonof its shape is very stiff and holds the end of the strut securely inplace besides afiording a secure anchorage for the drift wires andpermitting easy adjustment thereof.

it claim as myinvention:

1. A fitting for a wing strut of an aero plane, arched in a longitudinaldirection,

made concavo-conveX transversely, provided centrally with an aperture toreceive the end of the strut, and adapted to be secured to thewing-spar. 2. A. fitting for a wing strut of an aeroplane, arched in alongitudinal direction, made concave-convex transversely, providedcentrallywith an aperture to receive the end of the strut, and adaptedto be secured to the wing-spar, the fitting being also provided with oneor more slots for the attachment of one or more guy wires.

3. The combination in an aeroplane Wing, of a wing-spar, a strut fittingsecured to the 'wingspair, arched longitudinally, concavoconvex intransverse section, and provided with a central aperture, and a strutseated in said central aperture and bearing against the wing-spar.

4. The combination in an aeroplane wing, of a wingspar, a strut fittingsecured to the wing-spar, arched longitudinally, concavo-.

convex in transverse section, and provided with a central aperture, astrut seated in the central aperture and bearing against the wing-spar,and guy wires secured to the litting.

5. The combination in an aeroplane wing, p

of a wingspar, a strut fitting secured to the wing-spar, archedlongitudinally, concaveconvex in transverse section, and provided with acentral aperture, a strut seated in the central aperture and bearingagainst the Wing-spar,

' copies of this patent may be obtained. for

and guy wires secured to the fitting, the fitting being provided withslots for connection with the guy wires.

6. The combination in an aeroplane wing, of a wing-spar, a strut fittingsecured to the Wing-spar, arched longitudinally, concavoconvex intransverse section, and provided with a central aperture, a strut seatedin the central aperture and bearing against the wing-spar, and guy wiressecured to the fitting, the fitting being provided with slots forconnection with the guy Wires, each of said guy wires havin at its endan eye-bolt passed through the tting and receiving a nut onthe innerside thereof.

This specification signed this 2e day of September, 1917.

LEWIS G. YOUNG.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 9.

